<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>

<body>

  <form>
    <input type="checkbox" id="html" checked> <label for="html">HTML</label>
    <input type="checkbox" id="css"> <label for="css">CSS</label>
    <input type="checkbox" id="js"> <label for="js">JS</label>
  </form>

</body>

</html>